/** vim: et:ts=4:sw=4:sts=4
 * @license RequireJS 2.1.11 Copyright (c) 2010-2014, The Dojo Foundation All Rights Reserved.
 * Available via the MIT or new BSD license.
 * see: http://github.com/jrburke/requirejs for details
 */
//Not using strict: uneven strict support in browsers, #392, and causes
//problems with requirejs.exec()/transpiler plugins that may not be strict.
/*jslint regexp: true, nomen: true, sloppy: true */
/*global window, navigator, document, importScripts, setTimeout, opera */

var requirejs, require, define;
(function (global) {
 var req, s, head, baseElement, dataMain, src,
     interactiveScript, currentlyAddingScript, mainScript, subPath,
     version = '2.1.11',
     commentRegExp = /(\/\*([\s\S]*?)\*\/|([^:]|^)\/\/(.*)$)/mg,
     cjsRequireRegExp = /[^.]\s*require\s*\(\s*["']([^'"\s]+)["']\s*\)/g,
     jsSuffixRegExp = /\.js$/,
     currDirRegExp = /^\.\//,
     op = Object.prototype,
     ostring = op.toString,
     hasOwn = op.hasOwnProperty,
     ap = Array.prototype,
     apsp = ap.splice,
     isBrowser = !!(typeof window !== 'undefined' && typeof navigator !== 'undefined' && window.document),
     isWebWorker = !isBrowser && typeof importScripts !== 'undefined',
 //PS3 indicates loaded and complete, but need to wait for complete
 //specifically. Sequence is 'loading', 'loaded', execution,
 // then 'complete'. The UA check is unfortunate, but not sure how
 //to feature test w/o causing perf issues.
     readyRegExp = isBrowser && navigator.platform === 'PLAYSTATION 3' ?
         /^complete$/ : /^(complete|loaded)$/,
     defContextName = '_',
 //Oh the tragedy, detecting opera. See the usage of isOpera for reason.
     isOpera = typeof opera !== 'undefined' && opera.toString() === '[object Opera]',
     contexts = {},
     cfg = {},
     globalDefQueue = [],
     useInteractive = false;

 function isFunction(it) {
  return ostring.call(it) === '[object Function]';
 }

 function isArray(it) {
  return ostring.call(it) === '[object Array]';
 }

 /**
  * Helper function for iterating over an array. If the func returns
  * a true value, it will break out of the loop.
  */
 function each(ary, func) {
  if (ary) {
   var i;
   for (i = 0; i < ary.length; i += 1) {
    if (ary[i] && func(ary[i], i, ary)) {
     break;
    }
   }
  }
 }

 /**
  * Helper function for iterating over an array backwards. If the func
  * returns a true value, it will break out of the loop.
  */
 function eachReverse(ary, func) {
  if (ary) {
   var i;
   for (i = ary.length - 1; i > -1; i -= 1) {
    if (ary[i] && func(ary[i], i, ary)) {
     break;
    }
   }
  }
 }

 function hasProp(obj, prop) {
  return hasOwn.call(obj, prop);
 }

 function getOwn(obj, prop) {
  return hasProp(obj, prop) && obj[prop];
 }

 /**
  * Cycles over properties in an object and calls a function for each
  * property value. If the function returns a truthy value, then the
  * iteration is stopped.
  */
 function eachProp(obj, func) {
  var prop;
  for (prop in obj) {
   if (hasProp(obj, prop)) {
    if (func(obj[prop], prop)) {
     break;
    }
   }
  }
 }

 /**
  * Simple function to mix in properties from source into target,
  * but only if target does not already have a property of the same name.
  */
 function mixin(target, source, force, deepStringMixin) {
  if (source) {
   eachProp(source, function (value, prop) {
    if (force || !hasProp(target, prop)) {
     if (deepStringMixin && typeof value === 'object' && value &&
         !isArray(value) && !isFunction(value) &&
         !(value instanceof RegExp)) {

      if (!target[prop]) {
       target[prop] = {};
      }
      mixin(target[prop], value, force, deepStringMixin);
     } else {
      target[prop] = value;
     }
    }
   });
  }
  return target;
 }

 //Similar to Function.prototype.bind, but the 'this' object is specified
 //first, since it is easier to read/figure out what 'this' will be.
 function bind(obj, fn) {
  return function () {
   return fn.apply(obj, arguments);
  };
 }

 function scripts() {
  return document.getElementsByTagName('script');
 }

 function defaultOnError(err) {
  throw err;
 }

 //Allow getting a global that is expressed in
 //dot notation, like 'a.b.c'.
 function getGlobal(value) {
  if (!value) {
   return value;
  }
  var g = global;
  each(value.split('.'), function (part) {
   g = g[part];
  });
  return g;
 }

 /**
  * Constructs an error with a pointer to an URL with more information.
  * @param {String} id the error ID that maps to an ID on a web page.
  * @param {String} message human readable error.
  * @param {Error} [err] the original error, if there is one.
  *
  * @returns {Error}
  */
 function makeError(id, msg, err, requireModules) {
  var e = new Error(msg + '\nhttp://requirejs.org/docs/errors.html#' + id);
  e.requireType = id;
  e.requireModules = requireModules;
  if (err) {
   e.originalError = err;
  }
  return e;
 }

 if (typeof define !== 'undefined') {
  //If a define is already in play via another AMD loader,
  //do not overwrite.
  return;
 }

 if (typeof requirejs !== 'undefined') {
  if (isFunction(requirejs)) {
   //Do not overwrite and existing requirejs instance.
   return;
  }
  cfg = requirejs;
  requirejs = undefined;
 }

 //Allow for a require config object
 if (typeof require !== 'undefined' && !isFunction(require)) {
  //assume it is a config object.
  cfg = require;
  require = undefined;
 }

 function newContext(contextName) {
  var inCheckLoaded, Module, context, handlers,
      checkLoadedTimeoutId,
      config = {
       //Defaults. Do not set a default for map
       //config to speed up normalize(), which
       //will run faster if there is no default.
       waitSeconds: 7,
       baseUrl: './',
       paths: {},
       bundles: {},
       pkgs: {},
       shim: {},
       config: {}
      },
      registry = {},
  //registry of just enabled modules, to speed
  //cycle breaking code when lots of modules
  //are registered, but not activated.
      enabledRegistry = {},
      undefEvents = {},
      defQueue = [],
      defined = {},
      urlFetched = {},
      bundlesMap = {},
      requireCounter = 1,
      unnormalizedCounter = 1;

  /**
   * Trims the . and .. from an array of path segments.
   * It will keep a leading path segment if a .. will become
   * the first path segment, to help with module name lookups,
   * which act like paths, but can be remapped. But the end result,
   * all paths that use this function should look normalized.
   * NOTE: this method MODIFIES the input array.
   * @param {Array} ary the array of path segments.
   */
  function trimDots(ary) {
   var i, part, length = ary.length;
   for (i = 0; i < length; i++) {
    part = ary[i];
    if (part === '.') {
     ary.splice(i, 1);
     i -= 1;
    } else if (part === '..') {
     if (i === 1 && (ary[2] === '..' || ary[0] === '..')) {
      //End of the line. Keep at least one non-dot
      //path segment at the front so it can be mapped
      //correctly to disk. Otherwise, there is likely
      //no path mapping for a path starting with '..'.
      //This can still fail, but catches the most reasonable
      //uses of ..
      break;
     } else if (i > 0) {
      ary.splice(i - 1, 2);
      i -= 2;
     }
    }
   }
  }

  /**
   * Given a relative module name, like ./something, normalize it to
   * a real name that can be mapped to a path.
   * @param {String} name the relative name
   * @param {String} baseName a real name that the name arg is relative
   * to.
   * @param {Boolean} applyMap apply the map config to the value. Should
   * only be done if this normalization is for a dependency ID.
   * @returns {String} normalized name
   */
  function normalize(name, baseName, applyMap) {
   var pkgMain, mapValue, nameParts, i, j, nameSegment, lastIndex,
       foundMap, foundI, foundStarMap, starI,
       baseParts = baseName && baseName.split('/'),
       normalizedBaseParts = baseParts,
       map = config.map,
       starMap = map && map['*'];

   //Adjust any relative paths.
   if (name && name.charAt(0) === '.') {
    //If have a base name, try to normalize against it,
    //otherwise, assume it is a top-level require that will
    //be relative to baseUrl in the end.
    if (baseName) {
     //Convert baseName to array, and lop off the last part,
     //so that . matches that 'directory' and not name of the baseName's
     //module. For instance, baseName of 'one/two/three', maps to
     //'one/two/three.js', but we want the directory, 'one/two' for
     //this normalization.
     normalizedBaseParts = baseParts.slice(0, baseParts.length - 1);
     name = name.split('/');
     lastIndex = name.length - 1;

     // If wanting node ID compatibility, strip .js from end
     // of IDs. Have to do this here, and not in nameToUrl
     // because node allows either .js or non .js to map
     // to same file.
     if (config.nodeIdCompat && jsSuffixRegExp.test(name[lastIndex])) {
      name[lastIndex] = name[lastIndex].replace(jsSuffixRegExp, '');
     }

     name = normalizedBaseParts.concat(name);
     trimDots(name);
     name = name.join('/');
    } else if (name.indexOf('./') === 0) {
     // No baseName, so this is ID is resolved relative
     // to baseUrl, pull off the leading dot.
     name = name.substring(2);
    }
   }

   //Apply map config if available.
   if (applyMap && map && (baseParts || starMap)) {
    nameParts = name.split('/');

    outerLoop: for (i = nameParts.length; i > 0; i -= 1) {
     nameSegment = nameParts.slice(0, i).join('/');

     if (baseParts) {
      //Find the longest baseName segment match in the config.
      //So, do joins on the biggest to smallest lengths of baseParts.
      for (j = baseParts.length; j > 0; j -= 1) {
       mapValue = getOwn(map, baseParts.slice(0, j).join('/'));

       //baseName segment has config, find if it has one for
       //this name.
       if (mapValue) {
        mapValue = getOwn(mapValue, nameSegment);
        if (mapValue) {
         //Match, update name to the new value.
         foundMap = mapValue;
         foundI = i;
         break outerLoop;
        }
       }
      }
     }

     //Check for a star map match, but just hold on to it,
     //if there is a shorter segment match later in a matching
     //config, then favor over this star map.
     if (!foundStarMap && starMap && getOwn(starMap, nameSegment)) {
      foundStarMap = getOwn(starMap, nameSegment);
      starI = i;
     }
    }

    if (!foundMap && foundStarMap) {
     foundMap = foundStarMap;
     foundI = starI;
    }

    if (foundMap) {
     nameParts.splice(0, foundI, foundMap);
     name = nameParts.join('/');
    }
   }

   // If the name points to a package's name, use
   // the package main instead.
   pkgMain = getOwn(config.pkgs, name);

   return pkgMain ? pkgMain : name;
  }

  function removeScript(name) {
   if (isBrowser) {
    each(scripts(), function (scriptNode) {
     if (scriptNode.getAttribute('data-requiremodule') === name &&
         scriptNode.getAttribute('data-requirecontext') === context.contextName) {
      scriptNode.parentNode.removeChild(scriptNode);
      return true;
     }
    });
   }
  }

  function hasPathFallback(id) {
   var pathConfig = getOwn(config.paths, id);
   if (pathConfig && isArray(pathConfig) && pathConfig.length > 1) {
    //Pop off the first array value, since it failed, and
    //retry
    pathConfig.shift();
    context.require.undef(id);
    context.require([id]);
    return true;
   }
  }

  //Turns a plugin!resource to [plugin, resource]
  //with the plugin being undefined if the name
  //did not have a plugin prefix.
  function splitPrefix(name) {
   var prefix,
       index = name ? name.indexOf('!') : -1;
   if (index > -1) {
    prefix = name.substring(0, index);
    name = name.substring(index + 1, name.length);
   }
   return [prefix, name];
  }

  /**
   * Creates a module mapping that includes plugin prefix, module
   * name, and path. If parentModuleMap is provided it will
   * also normalize the name via require.normalize()
   *
   * @param {String} name the module name
   * @param {String} [parentModuleMap] parent module map
   * for the module name, used to resolve relative names.
   * @param {Boolean} isNormalized: is the ID already normalized.
   * This is true if this call is done for a define() module ID.
   * @param {Boolean} applyMap: apply the map config to the ID.
   * Should only be true if this map is for a dependency.
   *
   * @returns {Object}
   */
  function makeModuleMap(name, parentModuleMap, isNormalized, applyMap) {
   var url, pluginModule, suffix, nameParts,
       prefix = null,
       parentName = parentModuleMap ? parentModuleMap.name : null,
       originalName = name,
       isDefine = true,
       normalizedName = '';

   //If no name, then it means it is a require call, generate an
   //internal name.
   if (!name) {
    isDefine = false;
    name = '_@r' + (requireCounter += 1);
   }

   nameParts = splitPrefix(name);
   prefix = nameParts[0];
   name = nameParts[1];

   if (prefix) {
    prefix = normalize(prefix, parentName, applyMap);
    pluginModule = getOwn(defined, prefix);
   }

   //Account for relative paths if there is a base name.
   if (name) {
    if (prefix) {
     if (pluginModule && pluginModule.normalize) {
      //Plugin is loaded, use its normalize method.
      normalizedName = pluginModule.normalize(name, function (name) {
       return normalize(name, parentName, applyMap);
      });
     } else {
      normalizedName = normalize(name, parentName, applyMap);
     }
    } else {
     //A regular module.
     normalizedName = normalize(name, parentName, applyMap);

     //Normalized name may be a plugin ID due to map config
     //application in normalize. The map config values must
     //already be normalized, so do not need to redo that part.
     nameParts = splitPrefix(normalizedName);
     prefix = nameParts[0];
     normalizedName = nameParts[1];
     isNormalized = true;

     url = context.nameToUrl(normalizedName);
    }
   }

   //If the id is a plugin id that cannot be determined if it needs
   //normalization, stamp it with a unique ID so two matching relative
   //ids that may conflict can be separate.
   suffix = prefix && !pluginModule && !isNormalized ?
   '_unnormalized' + (unnormalizedCounter += 1) :
       '';

   return {
    prefix: prefix,
    name: normalizedName,
    parentMap: parentModuleMap,
    unnormalized: !!suffix,
    url: url,
    originalName: originalName,
    isDefine: isDefine,
    id: (prefix ?
    prefix + '!' + normalizedName :
        normalizedName) + suffix
   };
  }

  function getModule(depMap) {
   var id = depMap.id,
       mod = getOwn(registry, id);

   if (!mod) {
    mod = registry[id] = new context.Module(depMap);
   }

   return mod;
  }

  function on(depMap, name, fn) {
   var id = depMap.id,
       mod = getOwn(registry, id);

   if (hasProp(defined, id) &&
       (!mod || mod.defineEmitComplete)) {
    if (name === 'defined') {
     fn(defined[id]);
    }
   } else {
    mod = getModule(depMap);
    if (mod.error && name === 'error') {
     fn(mod.error);
    } else {
     mod.on(name, fn);
    }
   }
  }

  function onError(err, errback) {
   var ids = err.requireModules,
       notified = false;

   if (errback) {
    errback(err);
   } else {
    each(ids, function (id) {
     var mod = getOwn(registry, id);
     if (mod) {
      //Set error on module, so it skips timeout checks.
      mod.error = err;
      if (mod.events.error) {
       notified = true;
       mod.emit('error', err);
      }
     }
    });

    if (!notified) {
     req.onError(err);
    }
   }
  }

  /**
   * Internal method to transfer globalQueue items to this context's
   * defQueue.
   */
  function takeGlobalQueue() {
   //Push all the globalDefQueue items into the context's defQueue
   if (globalDefQueue.length) {
    //Array splice in the values since the context code has a
    //local var ref to defQueue, so cannot just reassign the one
    //on context.
    apsp.apply(defQueue,
        [defQueue.length, 0].concat(globalDefQueue));
    globalDefQueue = [];
   }
  }

  handlers = {
   'require': function (mod) {
    if (mod.require) {
     return mod.require;
    } else {
     return (mod.require = context.makeRequire(mod.map));
    }
   },
   'exports': function (mod) {
    mod.usingExports = true;
    if (mod.map.isDefine) {
     if (mod.exports) {
      return (defined[mod.map.id] = mod.exports);
     } else {
      return (mod.exports = defined[mod.map.id] = {});
     }
    }
   },
   'module': function (mod) {
    if (mod.module) {
     return mod.module;
    } else {
     return (mod.module = {
      id: mod.map.id,
      uri: mod.map.url,
      config: function () {
       return  getOwn(config.config, mod.map.id) || {};
      },
      exports: mod.exports || (mod.exports = {})
     });
    }
   }
  };

  function cleanRegistry(id) {
   //Clean up machinery used for waiting modules.
   delete registry[id];
   delete enabledRegistry[id];
  }

  function breakCycle(mod, traced, processed) {
   var id = mod.map.id;

   if (mod.error) {
    mod.emit('error', mod.error);
   } else {
    traced[id] = true;
    each(mod.depMaps, function (depMap, i) {
     var depId = depMap.id,
         dep = getOwn(registry, depId);

     //Only force things that have not completed
     //being defined, so still in the registry,
     //and only if it has not been matched up
     //in the module already.
     if (dep && !mod.depMatched[i] && !processed[depId]) {
      if (getOwn(traced, depId)) {
       mod.defineDep(i, defined[depId]);
       mod.check(); //pass false?
      } else {
       breakCycle(dep, traced, processed);
      }
     }
    });
    processed[id] = true;
   }
  }

  function checkLoaded() {
   var err, usingPathFallback,
       waitInterval = config.waitSeconds * 1000,
   //It is possible to disable the wait interval by using waitSeconds of 0.
       expired = waitInterval && (context.startTime + waitInterval) < new Date().getTime(),
       noLoads = [],
       reqCalls = [],
       stillLoading = false,
       needCycleCheck = true;

   //Do not bother if this call was a result of a cycle break.
   if (inCheckLoaded) {
    return;
   }

   inCheckLoaded = true;

   //Figure out the state of all the modules.
   eachProp(enabledRegistry, function (mod) {
    var map = mod.map,
        modId = map.id;

    //Skip things that are not enabled or in error state.
    if (!mod.enabled) {
     return;
    }

    if (!map.isDefine) {
     reqCalls.push(mod);
    }

    if (!mod.error) {
     //If the module should be executed, and it has not
     //been inited and time is up, remember it.
     if (!mod.inited && expired) {
      if (hasPathFallback(modId)) {
       usingPathFallback = true;
       stillLoading = true;
      } else {
       noLoads.push(modId);
       removeScript(modId);
      }
     } else if (!mod.inited && mod.fetched && map.isDefine) {
      stillLoading = true;
      if (!map.prefix) {
       //No reason to keep looking for unfinished
       //loading. If the only stillLoading is a
       //plugin resource though, keep going,
       //because it may be that a plugin resource
       //is waiting on a non-plugin cycle.
       return (needCycleCheck = false);
      }
     }
    }
   });

   if (expired && noLoads.length) {
    //If wait time expired, throw error of unloaded modules.
    err = makeError('timeout', 'Load timeout for modules: ' + noLoads, null, noLoads);
    err.contextName = context.contextName;
    return onError(err);
   }

   //Not expired, check for a cycle.
   if (needCycleCheck) {
    each(reqCalls, function (mod) {
     breakCycle(mod, {}, {});
    });
   }

   //If still waiting on loads, and the waiting load is something
   //other than a plugin resource, or there are still outstanding
   //scripts, then just try back later.
   if ((!expired || usingPathFallback) && stillLoading) {
    //Something is still waiting to load. Wait for it, but only
    //if a timeout is not already in effect.
    if ((isBrowser || isWebWorker) && !checkLoadedTimeoutId) {
     checkLoadedTimeoutId = setTimeout(function () {
      checkLoadedTimeoutId = 0;
      checkLoaded();
     }, 50);
    }
   }

   inCheckLoaded = false;
  }

  Module = function (map) {
   this.events = getOwn(undefEvents, map.id) || {};
   this.map = map;
   this.shim = getOwn(config.shim, map.id);
   this.depExports = [];
   this.depMaps = [];
   this.depMatched = [];
   this.pluginMaps = {};
   this.depCount = 0;

   /* this.exports this.factory
    this.depMaps = [],
    this.enabled, this.fetched
    */
  };

  Module.prototype = {
   init: function (depMaps, factory, errback, options) {
    options = options || {};

    //Do not do more inits if already done. Can happen if there
    //are multiple define calls for the same module. That is not
    //a normal, common case, but it is also not unexpected.
    if (this.inited) {
     return;
    }

    this.factory = factory;

    if (errback) {
     //Register for errors on this module.
     this.on('error', errback);
    } else if (this.events.error) {
     //If no errback already, but there are error listeners
     //on this module, set up an errback to pass to the deps.
     errback = bind(this, function (err) {
      this.emit('error', err);
     });
    }

    //Do a copy of the dependency array, so that
    //source inputs are not modified. For example
    //"shim" deps are passed in here directly, and
    //doing a direct modification of the depMaps array
    //would affect that config.
    this.depMaps = depMaps && depMaps.slice(0);

    this.errback = errback;

    //Indicate this module has be initialized
    this.inited = true;

    this.ignore = options.ignore;

    //Could have option to init this module in enabled mode,
    //or could have been previously marked as enabled. However,
    //the dependencies are not known until init is called. So
    //if enabled previously, now trigger dependencies as enabled.
    if (options.enabled || this.enabled) {
     //Enable this module and dependencies.
     //Will call this.check()
     this.enable();
    } else {
     this.check();
    }
   },

   defineDep: function (i, depExports) {
    //Because of cycles, defined callback for a given
    //export can be called more than once.
    if (!this.depMatched[i]) {
     this.depMatched[i] = true;
     this.depCount -= 1;
     this.depExports[i] = depExports;
    }
   },

   fetch: function () {
    if (this.fetched) {
     return;
    }
    this.fetched = true;

    context.startTime = (new Date()).getTime();

    var map = this.map;

    //If the manager is for a plugin managed resource,
    //ask the plugin to load it now.
    if (this.shim) {
     context.makeRequire(this.map, {
      enableBuildCallback: true
     })(this.shim.deps || [], bind(this, function () {
      return map.prefix ? this.callPlugin() : this.load();
     }));
    } else {
     //Regular dependency.
     return map.prefix ? this.callPlugin() : this.load();
    }
   },

   load: function () {
    var url = this.map.url;

    //Regular dependency.
    if (!urlFetched[url]) {
     urlFetched[url] = true;
     context.load(this.map.id, url);
    }
   },

   /**
    * Checks if the module is ready to define itself, and if so,
    * define it.
    */
   check: function () {
    if (!this.enabled || this.enabling) {
     return;
    }

    var err, cjsModule,
        id = this.map.id,
        depExports = this.depExports,
        exports = this.exports,
        factory = this.factory;

    if (!this.inited) {
     this.fetch();
    } else if (this.error) {
     this.emit('error', this.error);
    } else if (!this.defining) {
     //The factory could trigger another require call
     //that would result in checking this module to
     //define itself again. If already in the process
     //of doing that, skip this work.
     this.defining = true;

     if (this.depCount < 1 && !this.defined) {
      if (isFunction(factory)) {
       //If there is an error listener, favor passing
       //to that instead of throwing an error. However,
       //only do it for define()'d  modules. require
       //errbacks should not be called for failures in
       //their callbacks (#699). However if a global
       //onError is set, use that.
       if ((this.events.error && this.map.isDefine) ||
           req.onError !== defaultOnError) {
        try {
         exports = context.execCb(id, factory, depExports, exports);
        } catch (e) {
         err = e;
        }
       } else {
        exports = context.execCb(id, factory, depExports, exports);
       }

       // Favor return value over exports. If node/cjs in play,
       // then will not have a return value anyway. Favor
       // module.exports assignment over exports object.
       if (this.map.isDefine && exports === undefined) {
        cjsModule = this.module;
        if (cjsModule) {
         exports = cjsModule.exports;
        } else if (this.usingExports) {
         //exports already set the defined value.
         exports = this.exports;
        }
       }

       if (err) {
        err.requireMap = this.map;
        err.requireModules = this.map.isDefine ? [this.map.id] : null;
        err.requireType = this.map.isDefine ? 'define' : 'require';
        return onError((this.error = err));
       }

      } else {
       //Just a literal value
       exports = factory;
      }

      this.exports = exports;

      if (this.map.isDefine && !this.ignore) {
       defined[id] = exports;

       if (req.onResourceLoad) {
        req.onResourceLoad(context, this.map, this.depMaps);
       }
      }

      //Clean up
      cleanRegistry(id);

      this.defined = true;
     }

     //Finished the define stage. Allow calling check again
     //to allow define notifications below in the case of a
     //cycle.
     this.defining = false;

     if (this.defined && !this.defineEmitted) {
      this.defineEmitted = true;
      this.emit('defined', this.exports);
      this.defineEmitComplete = true;
     }

    }
   },

   callPlugin: function () {
    var map = this.map,
        id = map.id,
    //Map already normalized the prefix.
        pluginMap = makeModuleMap(map.prefix);

    //Mark this as a dependency for this plugin, so it
    //can be traced for cycles.
    this.depMaps.push(pluginMap);

    on(pluginMap, 'defined', bind(this, function (plugin) {
     var load, normalizedMap, normalizedMod,
         bundleId = getOwn(bundlesMap, this.map.id),
         name = this.map.name,
         parentName = this.map.parentMap ? this.map.parentMap.name : null,
         localRequire = context.makeRequire(map.parentMap, {
          enableBuildCallback: true
         });

     //If current map is not normalized, wait for that
     //normalized name to load instead of continuing.
     if (this.map.unnormalized) {
      //Normalize the ID if the plugin allows it.
      if (plugin.normalize) {
       name = plugin.normalize(name, function (name) {
            return normalize(name, parentName, true);
           }) || '';
      }

      //prefix and name should already be normalized, no need
      //for applying map config again either.
      normalizedMap = makeModuleMap(map.prefix + '!' + name,
          this.map.parentMap);
      on(normalizedMap,
          'defined', bind(this, function (value) {
           this.init([], function () { return value; }, null, {
            enabled: true,
            ignore: true
           });
          }));

      normalizedMod = getOwn(registry, normalizedMap.id);
      if (normalizedMod) {
       //Mark this as a dependency for this plugin, so it
       //can be traced for cycles.
       this.depMaps.push(normalizedMap);

       if (this.events.error) {
        normalizedMod.on('error', bind(this, function (err) {
         this.emit('error', err);
        }));
       }
       normalizedMod.enable();
      }

      return;
     }

     //If a paths config, then just load that file instead to
     //resolve the plugin, as it is built into that paths layer.
     if (bundleId) {
      this.map.url = context.nameToUrl(bundleId);
      this.load();
      return;
     }

     load = bind(this, function (value) {
      this.init([], function () { return value; }, null, {
       enabled: true
      });
     });

     load.error = bind(this, function (err) {
      this.inited = true;
      this.error = err;
      err.requireModules = [id];

      //Remove temp unnormalized modules for this module,
      //since they will never be resolved otherwise now.
      eachProp(registry, function (mod) {
       if (mod.map.id.indexOf(id + '_unnormalized') === 0) {
        cleanRegistry(mod.map.id);
       }
      });

      onError(err);
     });

     //Allow plugins to load other code without having to know the
     //context or how to 'complete' the load.
     load.fromText = bind(this, function (text, textAlt) {
      /*jslint evil: true */
      var moduleName = map.name,
          moduleMap = makeModuleMap(moduleName),
          hasInteractive = useInteractive;

      //As of 2.1.0, support just passing the text, to reinforce
      //fromText only being called once per resource. Still
      //support old style of passing moduleName but discard
      //that moduleName in favor of the internal ref.
      if (textAlt) {
       text = textAlt;
      }

      //Turn off interactive script matching for IE for any define
      //calls in the text, then turn it back on at the end.
      if (hasInteractive) {
       useInteractive = false;
      }

      //Prime the system by creating a module instance for
      //it.
      getModule(moduleMap);

      //Transfer any config to this other module.
      if (hasProp(config.config, id)) {
       config.config[moduleName] = config.config[id];
      }

      try {
       req.exec(text);
      } catch (e) {
       return onError(makeError('fromtexteval',
           'fromText eval for ' + id +
           ' failed: ' + e,
           e,
           [id]));
      }

      if (hasInteractive) {
       useInteractive = true;
      }

      //Mark this as a dependency for the plugin
      //resource
      this.depMaps.push(moduleMap);

      //Support anonymous modules.
      context.completeLoad(moduleName);

      //Bind the value of that module to the value for this
      //resource ID.
      localRequire([moduleName], load);
     });

     //Use parentName here since the plugin's name is not reliable,
     //could be some weird string with no path that actually wants to
     //reference the parentName's path.
     plugin.load(map.name, localRequire, load, config);
    }));

    context.enable(pluginMap, this);
    this.pluginMaps[pluginMap.id] = pluginMap;
   },

   enable: function () {
    enabledRegistry[this.map.id] = this;
    this.enabled = true;

    //Set flag mentioning that the module is enabling,
    //so that immediate calls to the defined callbacks
    //for dependencies do not trigger inadvertent load
    //with the depCount still being zero.
    this.enabling = true;

    //Enable each dependency
    each(this.depMaps, bind(this, function (depMap, i) {
     var id, mod, handler;

     if (typeof depMap === 'string') {
      //Dependency needs to be converted to a depMap
      //and wired up to this module.
      depMap = makeModuleMap(depMap,
          (this.map.isDefine ? this.map : this.map.parentMap),
          false,
          !this.skipMap);
      this.depMaps[i] = depMap;

      handler = getOwn(handlers, depMap.id);

      if (handler) {
       this.depExports[i] = handler(this);
       return;
      }

      this.depCount += 1;

      on(depMap, 'defined', bind(this, function (depExports) {
       this.defineDep(i, depExports);
       this.check();
      }));

      if (this.errback) {
       on(depMap, 'error', bind(this, this.errback));
      }
     }

     id = depMap.id;
     mod = registry[id];

     //Skip special modules like 'require', 'exports', 'module'
     //Also, don't call enable if it is already enabled,
     //important in circular dependency cases.
     if (!hasProp(handlers, id) && mod && !mod.enabled) {
      context.enable(depMap, this);
     }
    }));

    //Enable each plugin that is used in
    //a dependency
    eachProp(this.pluginMaps, bind(this, function (pluginMap) {
     var mod = getOwn(registry, pluginMap.id);
     if (mod && !mod.enabled) {
      context.enable(pluginMap, this);
     }
    }));

    this.enabling = false;

    this.check();
   },

   on: function (name, cb) {
    var cbs = this.events[name];
    if (!cbs) {
     cbs = this.events[name] = [];
    }
    cbs.push(cb);
   },

   emit: function (name, evt) {
    each(this.events[name], function (cb) {
     cb(evt);
    });
    if (name === 'error') {
     //Now that the error handler was triggered, remove
     //the listeners, since this broken Module instance
     //can stay around for a while in the registry.
     delete this.events[name];
    }
   }
  };

  function callGetModule(args) {
   //Skip modules already defined.
   if (!hasProp(defined, args[0])) {
    getModule(makeModuleMap(args[0], null, true)).init(args[1], args[2]);
   }
  }

  function removeListener(node, func, name, ieName) {
   //Favor detachEvent because of IE9
   //issue, see attachEvent/addEventListener comment elsewhere
   //in this file.
   if (node.detachEvent && !isOpera) {
    //Probably IE. If not it will throw an error, which will be
    //useful to know.
    if (ieName) {
     node.detachEvent(ieName, func);
    }
   } else {
    node.removeEventListener(name, func, false);
   }
  }

  /**
   * Given an event from a script node, get the requirejs info from it,
   * and then removes the event listeners on the node.
   * @param {Event} evt
   * @returns {Object}
   */
  function getScriptData(evt) {
   //Using currentTarget instead of target for Firefox 2.0's sake. Not
   //all old browsers will be supported, but this one was easy enough
   //to support and still makes sense.
   var node = evt.currentTarget || evt.srcElement;

   //Remove the listeners once here.
   removeListener(node, context.onScriptLoad, 'load', 'onreadystatechange');
   removeListener(node, context.onScriptError, 'error');

   return {
    node: node,
    id: node && node.getAttribute('data-requiremodule')
   };
  }

  function intakeDefines() {
   var args;

   //Any defined modules in the global queue, intake them now.
   takeGlobalQueue();

   //Make sure any remaining defQueue items get properly processed.
   while (defQueue.length) {
    args = defQueue.shift();
    if (args[0] === null) {
     return onError(makeError('mismatch', 'Mismatched anonymous define() module: ' + args[args.length - 1]));
    } else {
     //args are id, deps, factory. Should be normalized by the
     //define() function.
     callGetModule(args);
    }
   }
  }

  context = {
   config: config,
   contextName: contextName,
   registry: registry,
   defined: defined,
   urlFetched: urlFetched,
   defQueue: defQueue,
   Module: Module,
   makeModuleMap: makeModuleMap,
   nextTick: req.nextTick,
   onError: onError,

   /**
    * Set a configuration for the context.
    * @param {Object} cfg config object to integrate.
    */
   configure: function (cfg) {
    //Make sure the baseUrl ends in a slash.
    if (cfg.baseUrl) {
     if (cfg.baseUrl.charAt(cfg.baseUrl.length - 1) !== '/') {
      cfg.baseUrl += '/';
     }
    }

    //Save off the paths since they require special processing,
    //they are additive.
    var shim = config.shim,
        objs = {
         paths: true,
         bundles: true,
         config: true,
         map: true
        };

    eachProp(cfg, function (value, prop) {
     if (objs[prop]) {
      if (!config[prop]) {
       config[prop] = {};
      }
      mixin(config[prop], value, true, true);
     } else {
      config[prop] = value;
     }
    });

    //Reverse map the bundles
    if (cfg.bundles) {
     eachProp(cfg.bundles, function (value, prop) {
      each(value, function (v) {
       if (v !== prop) {
        bundlesMap[v] = prop;
       }
      });
     });
    }

    //Merge shim
    if (cfg.shim) {
     eachProp(cfg.shim, function (value, id) {
      //Normalize the structure
      if (isArray(value)) {
       value = {
        deps: value
       };
      }
      if ((value.exports || value.init) && !value.exportsFn) {
       value.exportsFn = context.makeShimExports(value);
      }
      shim[id] = value;
     });
     config.shim = shim;
    }

    //Adjust packages if necessary.
    if (cfg.packages) {
     each(cfg.packages, function (pkgObj) {
      var location, name;

      pkgObj = typeof pkgObj === 'string' ? { name: pkgObj } : pkgObj;

      name = pkgObj.name;
      location = pkgObj.location;
      if (location) {
       config.paths[name] = pkgObj.location;
      }

      //Save pointer to main module ID for pkg name.
      //Remove leading dot in main, so main paths are normalized,
      //and remove any trailing .js, since different package
      //envs have different conventions: some use a module name,
      //some use a file name.
      config.pkgs[name] = pkgObj.name + '/' + (pkgObj.main || 'main')
              .replace(currDirRegExp, '')
              .replace(jsSuffixRegExp, '');
     });
    }

    //If there are any "waiting to execute" modules in the registry,
    //update the maps for them, since their info, like URLs to load,
    //may have changed.
    eachProp(registry, function (mod, id) {
     //If module already has init called, since it is too
     //late to modify them, and ignore unnormalized ones
     //since they are transient.
     if (!mod.inited && !mod.map.unnormalized) {
      mod.map = makeModuleMap(id);
     }
    });

    //If a deps array or a config callback is specified, then call
    //require with those args. This is useful when require is defined as a
    //config object before require.js is loaded.
    if (cfg.deps || cfg.callback) {
     context.require(cfg.deps || [], cfg.callback);
    }
   },

   makeShimExports: function (value) {
    function fn() {
     var ret;
     if (value.init) {
      ret = value.init.apply(global, arguments);
     }
     return ret || (value.exports && getGlobal(value.exports));
    }
    return fn;
   },

   makeRequire: function (relMap, options) {
    options = options || {};

    function localRequire(deps, callback, errback) {
     var id, map, requireMod;

     if (options.enableBuildCallback && callback && isFunction(callback)) {
      callback.__requireJsBuild = true;
     }

     if (typeof deps === 'string') {
      if (isFunction(callback)) {
       //Invalid call
       return onError(makeError('requireargs', 'Invalid require call'), errback);
      }

      //If require|exports|module are requested, get the
      //value for them from the special handlers. Caveat:
      //this only works while module is being defined.
      if (relMap && hasProp(handlers, deps)) {
       return handlers[deps](registry[relMap.id]);
      }

      //Synchronous access to one module. If require.get is
      //available (as in the Node adapter), prefer that.
      if (req.get) {
       return req.get(context, deps, relMap, localRequire);
      }

      //Normalize module name, if it contains . or ..
      map = makeModuleMap(deps, relMap, false, true);
      id = map.id;

      if (!hasProp(defined, id)) {
       return onError(makeError('notloaded', 'Module name "' +
           id +
           '" has not been loaded yet for context: ' +
           contextName +
           (relMap ? '' : '. Use require([])')));
      }
      return defined[id];
     }

     //Grab defines waiting in the global queue.
     intakeDefines();

     //Mark all the dependencies as needing to be loaded.
     context.nextTick(function () {
      //Some defines could have been added since the
      //require call, collect them.
      intakeDefines();

      requireMod = getModule(makeModuleMap(null, relMap));

      //Store if map config should be applied to this require
      //call for dependencies.
      requireMod.skipMap = options.skipMap;

      requireMod.init(deps, callback, errback, {
       enabled: true
      });

      checkLoaded();
     });

     return localRequire;
    }

    mixin(localRequire, {
     isBrowser: isBrowser,

     /**
      * Converts a module name + .extension into an URL path.
      * *Requires* the use of a module name. It does not support using
      * plain URLs like nameToUrl.
      */
     toUrl: function (moduleNamePlusExt) {
      var ext,
          index = moduleNamePlusExt.lastIndexOf('.'),
          segment = moduleNamePlusExt.split('/')[0],
          isRelative = segment === '.' || segment === '..';

      //Have a file extension alias, and it is not the
      //dots from a relative path.
      if (index !== -1 && (!isRelative || index > 1)) {
       ext = moduleNamePlusExt.substring(index, moduleNamePlusExt.length);
       moduleNamePlusExt = moduleNamePlusExt.substring(0, index);
      }

      return context.nameToUrl(normalize(moduleNamePlusExt,
          relMap && relMap.id, true), ext,  true);
     },

     defined: function (id) {
      return hasProp(defined, makeModuleMap(id, relMap, false, true).id);
     },

     specified: function (id) {
      id = makeModuleMap(id, relMap, false, true).id;
      return hasProp(defined, id) || hasProp(registry, id);
     }
    });

    //Only allow undef on top level require calls
    if (!relMap) {
     localRequire.undef = function (id) {
      //Bind any waiting define() calls to this context,
      //fix for #408
      takeGlobalQueue();

      var map = makeModuleMap(id, relMap, true),
          mod = getOwn(registry, id);

      removeScript(id);

      delete defined[id];
      delete urlFetched[map.url];
      delete undefEvents[id];

      //Clean queued defines too. Go backwards
      //in array so that the splices do not
      //mess up the iteration.
      eachReverse(defQueue, function(args, i) {
       if(args[0] === id) {
        defQueue.splice(i, 1);
       }
      });

      if (mod) {
       //Hold on to listeners in case the
       //module will be attempted to be reloaded
       //using a different config.
       if (mod.events.defined) {
        undefEvents[id] = mod.events;
       }

       cleanRegistry(id);
      }
     };
    }

    return localRequire;
   },

   /**
    * Called to enable a module if it is still in the registry
    * awaiting enablement. A second arg, parent, the parent module,
    * is passed in for context, when this method is overridden by
    * the optimizer. Not shown here to keep code compact.
    */
   enable: function (depMap) {
    var mod = getOwn(registry, depMap.id);
    if (mod) {
     getModule(depMap).enable();
    }
   },

   /**
    * Internal method used by environment adapters to complete a load event.
    * A load event could be a script load or just a load pass from a synchronous
    * load call.
    * @param {String} moduleName the name of the module to potentially complete.
    */
   completeLoad: function (moduleName) {
    var found, args, mod,
        shim = getOwn(config.shim, moduleName) || {},
        shExports = shim.exports;

    takeGlobalQueue();

    while (defQueue.length) {
     args = defQueue.shift();
     if (args[0] === null) {
      args[0] = moduleName;
      //If already found an anonymous module and bound it
      //to this name, then this is some other anon module
      //waiting for its completeLoad to fire.
      if (found) {
       break;
      }
      found = true;
     } else if (args[0] === moduleName) {
      //Found matching define call for this script!
      found = true;
     }

     callGetModule(args);
    }

    //Do this after the cycle of callGetModule in case the result
    //of those calls/init calls changes the registry.
    mod = getOwn(registry, moduleName);

    if (!found && !hasProp(defined, moduleName) && mod && !mod.inited) {
     if (config.enforceDefine && (!shExports || !getGlobal(shExports))) {
      if (hasPathFallback(moduleName)) {
       return;
      } else {
       return onError(makeError('nodefine',
           'No define call for ' + moduleName,
           null,
           [moduleName]));
      }
     } else {
      //A script that does not call define(), so just simulate
      //the call for it.
      callGetModule([moduleName, (shim.deps || []), shim.exportsFn]);
     }
    }

    checkLoaded();
   },

   /**
    * Converts a module name to a file path. Supports cases where
    * moduleName may actually be just an URL.
    * Note that it **does not** call normalize on the moduleName,
    * it is assumed to have already been normalized. This is an
    * internal API, not a public one. Use toUrl for the public API.
    */
   nameToUrl: function (moduleName, ext, skipExt) {
    var paths, syms, i, parentModule, url,
        parentPath, bundleId,
        pkgMain = getOwn(config.pkgs, moduleName);

    if (pkgMain) {
     moduleName = pkgMain;
    }

    bundleId = getOwn(bundlesMap, moduleName);

    if (bundleId) {
     return context.nameToUrl(bundleId, ext, skipExt);
    }

    //If a colon is in the URL, it indicates a protocol is used and it is just
    //an URL to a file, or if it starts with a slash, contains a query arg (i.e. ?)
    //or ends with .js, then assume the user meant to use an url and not a module id.
    //The slash is important for protocol-less URLs as well as full paths.
    if (req.jsExtRegExp.test(moduleName)) {
     //Just a plain path, not module name lookup, so just return it.
     //Add extension if it is included. This is a bit wonky, only non-.js things pass
     //an extension, this method probably needs to be reworked.
     url = moduleName + (ext || '');
    } else {
     //A module that needs to be converted to a path.
     paths = config.paths;

     syms = moduleName.split('/');
     //For each module name segment, see if there is a path
     //registered for it. Start with most specific name
     //and work up from it.
     for (i = syms.length; i > 0; i -= 1) {
      parentModule = syms.slice(0, i).join('/');

      parentPath = getOwn(paths, parentModule);
      if (parentPath) {
       //If an array, it means there are a few choices,
       //Choose the one that is desired
       if (isArray(parentPath)) {
        parentPath = parentPath[0];
       }
       syms.splice(0, i, parentPath);
       break;
      }
     }

     //Join the path parts together, then figure out if baseUrl is needed.
     url = syms.join('/');
     url += (ext || (/^data\:|\?/.test(url) || skipExt ? '' : '.js'));
     url = (url.charAt(0) === '/' || url.match(/^[\w\+\.\-]+:/) ? '' : config.baseUrl) + url;
    }

    return config.urlArgs ? url +
    ((url.indexOf('?') === -1 ? '?' : '&') +
    config.urlArgs) : url;
   },

   //Delegates to req.load. Broken out as a separate function to
   //allow overriding in the optimizer.
   load: function (id, url) {
    req.load(context, id, url);
   },

   /**
    * Executes a module callback function. Broken out as a separate function
    * solely to allow the build system to sequence the files in the built
    * layer in the right sequence.
    *
    * @private
    */
   execCb: function (name, callback, args, exports) {
    return callback.apply(exports, args);
   },

   /**
    * callback for script loads, used to check status of loading.
    *
    * @param {Event} evt the event from the browser for the script
    * that was loaded.
    */
   onScriptLoad: function (evt) {
    //Using currentTarget instead of target for Firefox 2.0's sake. Not
    //all old browsers will be supported, but this one was easy enough
    //to support and still makes sense.
    if (evt.type === 'load' ||
        (readyRegExp.test((evt.currentTarget || evt.srcElement).readyState))) {
     //Reset interactive script so a script node is not held onto for
     //to long.
     interactiveScript = null;

     //Pull out the name of the module and the context.
     var data = getScriptData(evt);
     context.completeLoad(data.id);
    }
   },

   /**
    * Callback for script errors.
    */
   onScriptError: function (evt) {
    var data = getScriptData(evt);
    if (!hasPathFallback(data.id)) {
     return onError(makeError('scripterror', 'Script error for: ' + data.id, evt, [data.id]));
    }
   }
  };

  context.require = context.makeRequire();
  return context;
 }

 /**
  * Main entry point.
  *
  * If the only argument to require is a string, then the module that
  * is represented by that string is fetched for the appropriate context.
  *
  * If the first argument is an array, then it will be treated as an array
  * of dependency string names to fetch. An optional function callback can
  * be specified to execute when all of those dependencies are available.
  *
  * Make a local req variable to help Caja compliance (it assumes things
  * on a require that are not standardized), and to give a short
  * name for minification/local scope use.
  */
 req = requirejs = function (deps, callback, errback, optional) {

  //Find the right context, use default
  var context, config,
      contextName = defContextName;

  // Determine if have config object in the call.
  if (!isArray(deps) && typeof deps !== 'string') {
   // deps is a config object
   config = deps;
   if (isArray(callback)) {
    // Adjust args if there are dependencies
    deps = callback;
    callback = errback;
    errback = optional;
   } else {
    deps = [];
   }
  }

  if (config && config.context) {
   contextName = config.context;
  }

  context = getOwn(contexts, contextName);
  if (!context) {
   context = contexts[contextName] = req.s.newContext(contextName);
  }

  if (config) {
   context.configure(config);
  }

  return context.require(deps, callback, errback);
 };

 /**
  * Support require.config() to make it easier to cooperate with other
  * AMD loaders on globally agreed names.
  */
 req.config = function (config) {
  return req(config);
 };

 /**
  * Execute something after the current tick
  * of the event loop. Override for other envs
  * that have a better solution than setTimeout.
  * @param  {Function} fn function to execute later.
  */
 req.nextTick = typeof setTimeout !== 'undefined' ? function (fn) {
  setTimeout(fn, 4);
 } : function (fn) { fn(); };

 /**
  * Export require as a global, but only if it does not already exist.
  */
 if (!require) {
  require = req;
 }

 req.version = version;

 //Used to filter out dependencies that are already paths.
 req.jsExtRegExp = /^\/|:|\?|\.js$/;
 req.isBrowser = isBrowser;
 s = req.s = {
  contexts: contexts,
  newContext: newContext
 };

 //Create default context.
 req({});

 //Exports some context-sensitive methods on global require.
 each([
  'toUrl',
  'undef',
  'defined',
  'specified'
 ], function (prop) {
  //Reference from contexts instead of early binding to default context,
  //so that during builds, the latest instance of the default context
  //with its config gets used.
  req[prop] = function () {
   var ctx = contexts[defContextName];
   return ctx.require[prop].apply(ctx, arguments);
  };
 });

 if (isBrowser) {
  head = s.head = document.getElementsByTagName('head')[0];
  //If BASE tag is in play, using appendChild is a problem for IE6.
  //When that browser dies, this can be removed. Details in this jQuery bug:
  //http://dev.jquery.com/ticket/2709
  baseElement = document.getElementsByTagName('base')[0];
  if (baseElement) {
   head = s.head = baseElement.parentNode;
  }
 }

 /**
  * Any errors that require explicitly generates will be passed to this
  * function. Intercept/override it if you want custom error handling.
  * @param {Error} err the error object.
  */
 req.onError = defaultOnError;

 /**
  * Creates the node for the load command. Only used in browser envs.
  */
 req.createNode = function (config, moduleName, url) {
  var node = config.xhtml ?
      document.createElementNS('http://www.w3.org/1999/xhtml', 'html:script') :
      document.createElement('script');
  node.type = config.scriptType || 'text/javascript';
  node.charset = 'utf-8';
  node.async = true;
  return node;
 };

 /**
  * Does the request to load a module for the browser case.
  * Make this a separate function to allow other environments
  * to override it.
  *
  * @param {Object} context the require context to find state.
  * @param {String} moduleName the name of the module.
  * @param {Object} url the URL to the module.
  */
 req.load = function (context, moduleName, url) {
  var config = (context && context.config) || {},
      node;
  if (isBrowser) {
   //In the browser so use a script tag
   node = req.createNode(config, moduleName, url);

   node.setAttribute('data-requirecontext', context.contextName);
   node.setAttribute('data-requiremodule', moduleName);

   //Set up load listener. Test attachEvent first because IE9 has
   //a subtle issue in its addEventListener and script onload firings
   //that do not match the behavior of all other browsers with
   //addEventListener support, which fire the onload event for a
   //script right after the script execution. See:
   //https://connect.microsoft.com/IE/feedback/details/648057/script-onload-event-is-not-fired-immediately-after-script-execution
   //UNFORTUNATELY Opera implements attachEvent but does not follow the script
   //script execution mode.
   if (node.attachEvent &&
        //Check if node.attachEvent is artificially added by custom script or
        //natively supported by browser
        //read https://github.com/jrburke/requirejs/issues/187
        //if we can NOT find [native code] then it must NOT natively supported.
        //in IE8, node.attachEvent does not have toString()
        //Note the test for "[native code" with no closing brace, see:
        //https://github.com/jrburke/requirejs/issues/273
       !(node.attachEvent.toString && node.attachEvent.toString().indexOf('[native code') < 0) &&
       !isOpera) {
    //Probably IE. IE (at least 6-8) do not fire
    //script onload right after executing the script, so
    //we cannot tie the anonymous define call to a name.
    //However, IE reports the script as being in 'interactive'
    //readyState at the time of the define call.
    useInteractive = true;

    node.attachEvent('onreadystatechange', context.onScriptLoad);
    //It would be great to add an error handler here to catch
    //404s in IE9+. However, onreadystatechange will fire before
    //the error handler, so that does not help. If addEventListener
    //is used, then IE will fire error before load, but we cannot
    //use that pathway given the connect.microsoft.com issue
    //mentioned above about not doing the 'script execute,
    //then fire the script load event listener before execute
    //next script' that other browsers do.
    //Best hope: IE10 fixes the issues,
    //and then destroys all installs of IE 6-9.
    //node.attachEvent('onerror', context.onScriptError);
   } else {
    node.addEventListener('load', context.onScriptLoad, false);
    node.addEventListener('error', context.onScriptError, false);
   }
   node.src = url;

   //For some cache cases in IE 6-8, the script executes before the end
   //of the appendChild execution, so to tie an anonymous define
   //call to the module name (which is stored on the node), hold on
   //to a reference to this node, but clear after the DOM insertion.
   currentlyAddingScript = node;
   if (baseElement) {
    head.insertBefore(node, baseElement);
   } else {
    head.appendChild(node);
   }
   currentlyAddingScript = null;

   return node;
  } else if (isWebWorker) {
   try {
    //In a web worker, use importScripts. This is not a very
    //efficient use of importScripts, importScripts will block until
    //its script is downloaded and evaluated. However, if web workers
    //are in play, the expectation that a build has been done so that
    //only one script needs to be loaded anyway. This may need to be
    //reevaluated if other use cases become common.
    importScripts(url);

    //Account for anonymous modules
    context.completeLoad(moduleName);
   } catch (e) {
    context.onError(makeError('importscripts',
        'importScripts failed for ' +
        moduleName + ' at ' + url,
        e,
        [moduleName]));
   }
  }
 };

 function getInteractiveScript() {
  if (interactiveScript && interactiveScript.readyState === 'interactive') {
   return interactiveScript;
  }

  eachReverse(scripts(), function (script) {
   if (script.readyState === 'interactive') {
    return (interactiveScript = script);
   }
  });
  return interactiveScript;
 }

 //Look for a data-main script attribute, which could also adjust the baseUrl.
 if (isBrowser && !cfg.skipDataMain) {
  //Figure out baseUrl. Get it from the script tag with require.js in it.
  eachReverse(scripts(), function (script) {
   //Set the 'head' where we can append children by
   //using the script's parent.
   if (!head) {
    head = script.parentNode;
   }

   //Look for a data-main attribute to set main script for the page
   //to load. If it is there, the path to data main becomes the
   //baseUrl, if it is not already set.
   dataMain = script.getAttribute('data-main');
   if (dataMain) {
    //Preserve dataMain in case it is a path (i.e. contains '?')
    mainScript = dataMain;

    //Set final baseUrl if there is not already an explicit one.
    if (!cfg.baseUrl) {
     //Pull off the directory of data-main for use as the
     //baseUrl.
     src = mainScript.split('/');
     mainScript = src.pop();
     subPath = src.length ? src.join('/')  + '/' : './';

     cfg.baseUrl = subPath;
    }

    //Strip off any trailing .js since mainScript is now
    //like a module name.
    mainScript = mainScript.replace(jsSuffixRegExp, '');

    //If mainScript is still a path, fall back to dataMain
    if (req.jsExtRegExp.test(mainScript)) {
     mainScript = dataMain;
    }

    //Put the data-main script in the files to load.
    cfg.deps = cfg.deps ? cfg.deps.concat(mainScript) : [mainScript];

    return true;
   }
  });
 }

 /**
  * The function that handles definitions of modules. Differs from
  * require() in that a string for the module should be the first argument,
  * and the function to execute after dependencies are loaded should
  * return a value to define the module corresponding to the first argument's
  * name.
  */
 define = function (name, deps, callback) {
  var node, context;

  //Allow for anonymous modules
  if (typeof name !== 'string') {
   //Adjust args appropriately
   callback = deps;
   deps = name;
   name = null;
  }

  //This module may not have dependencies
  if (!isArray(deps)) {
   callback = deps;
   deps = null;
  }

  //If no name, and callback is a function, then figure out if it a
  //CommonJS thing with dependencies.
  if (!deps && isFunction(callback)) {
   deps = [];
   //Remove comments from the callback string,
   //look for require calls, and pull them into the dependencies,
   //but only if there are function args.
   if (callback.length) {
    callback
        .toString()
        .replace(commentRegExp, '')
        .replace(cjsRequireRegExp, function (match, dep) {
         deps.push(dep);
        });

    //May be a CommonJS thing even without require calls, but still
    //could use exports, and module. Avoid doing exports and module
    //work though if it just needs require.
    //REQUIRES the function to expect the CommonJS variables in the
    //order listed below.
    deps = (callback.length === 1 ? ['require'] : ['require', 'exports', 'module']).concat(deps);
   }
  }

  //If in IE 6-8 and hit an anonymous define() call, do the interactive
  //work.
  if (useInteractive) {
   node = currentlyAddingScript || getInteractiveScript();
   if (node) {
    if (!name) {
     name = node.getAttribute('data-requiremodule');
    }
    context = contexts[node.getAttribute('data-requirecontext')];
   }
  }

  //Always save off evaluating the def call until the script onload handler.
  //This allows multiple modules to be in a file without prematurely
  //tracing dependencies, and allows for anonymous module support,
  //where the module name is not known until the script onload event
  //occurs. If no context, use the global queue, and get it processed
  //in the onscript load callback.
  (context ? context.defQueue : globalDefQueue).push([name, deps, callback]);
 };

 define.amd = {
  jQuery: true
 };


 /**
  * Executes the text. Normally just uses eval, but can be modified
  * to use a better, environment-specific call. Only used for transpiling
  * loader plugins, not for plain JS modules.
  * @param {String} text the text to execute/evaluate.
  */
 req.exec = function (text) {
  /*jslint evil: true */
  return eval(text);
 };

 //Set up with config info.
 req(cfg);
}(this));